#155

frontend/src/pages/wiki/WikiEditPage.test.tsx

@@ -0,0 +1,82 @@
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import { Route, Routes } from 'react-router-dom'
+import { describe, expect, it, vi } from 'vitest'
+
+import WikiEditPage from '@/pages/wiki/WikiEditPage'
+import { buildUser, buildWikiPage } from '@/test/factories'
+import { renderWithProviders } from '@/test/render'
+
+const api = vi.hoisted (() => ({
+  apiGet: vi.fn (),
+  apiPut: vi.fn (),
+}))
+
+const toastApi = vi.hoisted (() => ({
+  toast: vi.fn (),
+}))
+
+vi.mock ('@/lib/api', () => api)
+vi.mock ('@/components/ui/use-toast', () => toastApi)
+vi.mock ('react-markdown-editor-lite', () => ({
+  default: ({ value, onChange }: {
+    value:    string
+    onChange: (event: { text: string }) => void
+  }) => (
+      <textarea
+          aria-label="本文エディタ"
+          value={value}
+          onChange={ev => onChange ({ text: ev.target.value })}/>
+  ),
+}))
+
+const renderPage = (user = buildUser ({ role: 'member' })) =>
+  renderWithProviders (
+      <Routes>
+        <Route path="/wiki/:id/edit" element={<WikiEditPage user={user}/>}/>
+      </Routes>,
+      { route: '/wiki/9/edit' },
+  )
+
+describe ('WikiEditPage', () => {
+  it ('blocks guests', () => {
+    renderPage (buildUser ({ role: 'guest' }))
+
+    expect (screen.getByText ('403')).toBeInTheDocument ()
+  })
+
+  it ('loads the target page for editing', async () => {
+    api.apiGet.mockResolvedValueOnce (buildWikiPage ({ title: '既存', body: '本文' }))
+
+    renderPage ()
+
+    await waitFor (() => {
+      expect (api.apiGet).toHaveBeenCalledWith ('/wiki/9')
+    })
+    expect (screen.getAllByRole ('textbox')[0]).toHaveValue ('既存')
+    expect (screen.getByLabelText ('本文エディタ')).toHaveValue ('本文')
+  })
+
+  it ('submits edited title and body', async () => {
+    api.apiGet.mockResolvedValueOnce (buildWikiPage ({ title: '既存', body: '本文' }))
+    api.apiPut.mockResolvedValueOnce ({})
+
+    renderPage ()
+
+    const title = await screen.findByDisplayValue ('既存')
+    fireEvent.change (title, { target: { value: '更新済み' } })
+    fireEvent.change (screen.getByLabelText ('本文エディタ'), { target: { value: '更新本文' } })
+    fireEvent.click (screen.getByRole ('button', { name: '編輯' }))
+
+    await waitFor (() => {
+      expect (api.apiPut).toHaveBeenCalledWith (
+          '/wiki/9',
+          expect.any (FormData),
+          { headers: { 'Content-Type': 'multipart/form-data' } },
+      )
+    })
+    const formData = api.apiPut.mock.calls[0]?.[1] as FormData
+    expect (formData.get ('title')).toBe ('更新済み')
+    expect (formData.get ('body')).toBe ('更新本文')
+    expect (toastApi.toast).toHaveBeenCalledWith ({ title: '投稿成功!' })
+  })
+})